chore(deps): update actions/checkout action to v6

Author: bfra-me[bot]

.github/workflows/auto-approve.yaml

@@ -30,7 +30,7 @@ jobs:
           private-key: ${{ secrets.APPLICATION_PRIVATE_KEY }}
 
       - name: Checkout repository
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           persist-credentials: false
           token: ${{ steps.get-workflow-access-token.outputs.token }}

.github/workflows/main.yaml

@@ -21,7 +21,7 @@ jobs:
     name: CI
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
       - name: Setup pnpm
         uses: pnpm/action-setup@1e1c8eafbd745f64b1ef30a7d7ed7965034c486c
         with:
@@ -59,7 +59,7 @@ jobs:
           git config --global user.email '118100583+bfra-me[bot]@users.noreply.github.com'
           git config --global user.name 'bfra-me[bot]'
       - name: Checkout `release` branch
-        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         with:
           fetch-depth: 0
           ref: release